Industrial radioactivity in the UK's onshore oil and gas industry by Joel Garner

“…For the first time, reagent quantities for radium recovery by barite coprecipitation have been optimised in saline solutions of ionic strength (IS) 0.3 and 3 M. The process is highly effective, removing a maximum of ~90% radium in a single optimised coprecipitation step, but requiring substantially more sulphate at 3 M than at 0.3 M ionic strength to reach this maximum. …”
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